Oink hunts for requests which exceed a given threshold. In “memory” mode
(the default), the threshold represents a megabyte memory increase from the
previous request. In “active record” mode (turned on by passing the
–active-record switch), the threshold represents the number of active
record objects instantiated during a request.

e.g. To find all actions which increase the heap size more than 75 MB,
where log files are location in /tmp/logs/